Whenever I install my sound card, my PC won't boot up.  That's pretty much it.  Is this a bad sound card, or just incompatability?  Also, when I disconnect it and XP loads up, it tells me it's detected an Audio COntrol Device.

Crazyness.

Maybe it won't boot if the onboard sound is enabled, but that would be odd. To test it, you need to disable the onboard sound either by jumper or BIOS setting like Gixer said.

if it still won't go......

Take the soundcard out, it's either faulty or you have a dead PCI slot. (did you try it in another slot?) You have an onboard sound chip on your mainboard, you need to install the drivers for it to get it to work. Look on your mainboard installation disk if you have one or go to the mainboard's manufacturers website and download the audio drivers SPECIFIC to your mainboard.

The other option is to follow Gixer's advice and try another soundcard, but the onboard sound should be fine unless it is an older and slower system.

Very strange. I have both my Sounblaster and my onboard audio on. I use the onboard for the headphone jack on the front panel. I've never used a Phillips card before so I don't know what they're like. If it is the card, trade it in for something by Creative or Turtle Beach.